<template>
  <el-dialog :title="showTitle" :visible="showDialog" @close="close">
    <el-form ref="addDept" label-width="120px" :model="formData" :rules="rules">
      <el-form-item prop="name" label="部门名称">
        <el-input v-model="formData.name" placeholder="2-10个字符" style="width: 80%" size="mini" />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input v-model="formData.code" placeholder="2-10个字符" style="width: 80%" size="mini" />
      </el-form-item>
      <el-form-item label="部门负责人" prop="managerId">
        <el-select v-model="formData.managerId" placeholder="请选择负责人" style="width: 80%" size="mini">
          <el-option v-for="item in managerList" :key="item.id" :label="item.username" :value="item.id" />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input
          v-model="formData.introduce"
          placeholder="1-100个字符"
          type="textarea"
          size="mini"
          :rows="4"
          style="width: 80%"
        />
      </el-form-item>
      <el-form-item>
        <!-- 按钮 -->
        <el-row type="flex" justify="center">
          <el-col :span="12">
            <el-button size="mini" type="primary" @click="submit">确定</el-button>
            <el-button size="mini" @click="close">取消</el-button>
          </el-col>
        </el-row>
      </el-form-item>
    </el-form>
  </el-dialog>
</template>

<script>
import { addDepartment, getDepartment, getDepartmentDetail, getManagerList, updateDepartment } from '@/api/department'

export default {
  name: 'AddDept',
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    currentId: {
      type: Number,
      default: null
    }
  },
  data() {
    return {
      formData: {
        code: '', // 部门编码
        introduce: '', // 部门介绍
        managerId: '', // 部门负责人id
        name: '', // 部门名称
        pid: '' // 父级部门的id
      },
      rules: {
        code: [{ required: true, message: '部门编码不能为空', trigger: 'blur' },
          {
            min: 2, max: 10, message: '部门编码的长度为2-10个字符', trigger: 'blur'
          },
          {
            trigger: 'blur',
            // 自定义校验模式
            validator: async(rule, value, callback) => {
              // value就是输入的编码
              let res = await getDepartment()
              // 如果是编辑功能，要编辑的部门信息，部门编码肯定是存在的
              // 将当前回显的部门信息移除
              if (this.formData.id) {
                res = res.filter(item => item.code !== this.formData.code)
              }
              // result数组中是否存在 value值
              if (res.some(item => item.code === value)) {
                callback(new Error('部门中已经有该编码了'))
              } else {
                callback()
              }
            }
          }
        ], // 部门编码
        introduce: [{ required: true, message: '部门介绍不能为空', trigger: 'blur' }, {
          min: 1, max: 100, message: '部门介绍的长度为1-100个字符', trigger: 'blur'
        }], // 部门介绍
        managerId: [{ required: true, message: '部门负责人不能为空', trigger: 'blur' }], // 部门负责人id
        name: [{ required: true, message: '部门名称不能为空', trigger: 'blur' },
          {
            min: 2, max: 10, message: '部门名称的长度为2-10个字符', trigger: 'blur'
          },
          {
            trigger: 'blur',
            validator: async(rule, value, callback) => {
              let res = await getDepartment()
              // 如果是编辑功能，要编辑的部门信息，部门名称肯定是存在的
              // 将当前回显的部门信息移除
              if (this.formData.id) {
                res = res.filter(item => item.id !== this.formData.id)
              }
              if (res.some(item => item.name === value)) {
                callback(new Error('部门名称已近存在'))
              } else {
                callback()
              }
            }
          }] // 部门名称
        // pid: '' // 父级部门的id 不需要做校验
      },
      managerList: []
    }
  },
  computed: {
    showTitle() {
      return this.formData.id ? '编辑部门' : '新增部门'
    }
  },
  created() {
    this.getManagerList()
  },
  methods: {
    async getDepartmentDetail() {
      this.formData = await getDepartmentDetail(this.currentId)
    },
    async submit() {
      // 校验表单
      await this.$refs.addDept.validate()
      if (this.formData.id) {
        await updateDepartment(this.formData)
        this.$message.success('更新部门信息成功~~')
      } else {
        // 发送请求
        await addDepartment({ ...this.formData, pid: this.currentId })
        // 提示用户
        this.$message.success('新增部门成功~~')
      }
      // 通知父组件更新
      this.$emit('updateDepartment')
      // 重置表单,关闭弹层
      this.close()
    },
    async getManagerList() {
      this.managerList = await getManagerList()
    },
    close() {
      // resetFields只能重置在模版中绑定的数据
      this.formData = {
        code: '',
        introduce: '',
        managerId: '',
        name: '',
        pid: ''
      }
      this.$refs.addDept.resetFields() // 充值表单
      this.$emit('update:showDialog', false)
    }
  }
}
</script>

<style scoped lang='scss'>
</style>
